HKS M45XL Spark Plugs Set Fits Hyundai N Vehicles *FREE SHIPPING* Tuning 000 psi tensile strength

000 psi tensile strength

While it's not the only tuning system that operates this way

Caster Adjustable

Many years of technical knowledge

HKS M45XL Spark Plugs Set Fits Hyundai N Vehicles *FREE SHIPPING* Tuning 000 psi tensile strengthIN STOCK Sold as a set of four HKS M Series Super Fire Racing spark plugs are high performance Iridium plugs designed to handle advanced levels of tuning and provide Improved ignition performance, durability, and anti carbon build up. These plugs come pre gapped to . 030" from HKS which is suitable for use out of the box but we suggest closing the gap down to . 028 for mildly modified N's to . 022 for high boost high power applications Features 0. 6mm